Sanitary closure for bottles



C. W. BORGNER.

SANITARY CLOSURE FOR BOTTLES.

APPLICATION FILED FEB. 23. 19H.

' Patented June 15, 1920.

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CONRAD WALTER BOBGNER, OF LOWVILLE, NEW YORK.

SANITARY CLOSURE FOR BQTTLES.

Specification of Letters Patent.

Patented June 15, 1920.

Application filed February 25. 191,9. Serial m5. 219,687.

To all whom it may concern:

Be it known that I, Comm!) W. BORGNER, a citizen of the United States, residin at Lowville, in the county of Lewis and S tate of New York, have invented certain new and useful Improvements in Sanitar Closures for Bottles; and I do hereby eclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters and fi ures of reference marked thereon, which orm a part of this specification.

This invention relates to new and useful improvements in caps or closures for milk and other bottles and consists in the pro vision of means for sealing the bottle and protecting the lip from soil and foreign matter, comprising a simple and efficient device of this character having various details of construction, combination and arrangement of parts which will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the appended claims.

My invention is illustrated in the accompanying drawings which, with the letters of reference marked thereon, form a part of this application, and in which:

Figure 1 is a sectional view through the upper portion of the neck of a bottle with cap sealed therein.

Figs. 2 and 3 are central views showing slightly modified forms of the cap.

ig. 4 is a sectional view showing a still differently modified form of the cap, and

Figs. 5 and 6 are details of the modified forms shown in Fig. 4.

Reference now being had to the details of i the drawings by letter:

' A designates an ordinary milk bottle having the usual seat B in the neck thereof for the reception of a closure. My improved cap is designated by letter D in Fig. 1, and is made preferably of paper of one or more layers of suitable thickness, or any other material which may be adapted for the purpose. The cap is pressed to form an annular beading E, with a central upwardly convexed portion F, said beading being designed to be held by the elasticity of the central portion upon the seat B, while the portion of the cap outside of said beading is outwardly curved as at H, and adapted portion I with a rib J adapted to engage frictionally the seat, while an outward curved portion outside the rib, designated by letter L, snugly fits the curved convexed portion of the neck in the same manner as shown in Fig. 1.

In the form shown in Fig. 3 the cap N is formed in a slightly different manner than in Figs. 1 and 2, with the central or crown portion of the cap flush with the top of the neck, and has an annular rib N engaging the seat, the portions of the cap intermediate the crown and the part which engages over the top of the bottle being in contact with each other, and forming means for fil'ictionally holding the cap securely in p ace.

In Fig. 4 of the drawings I have shown the cap made of two ieces, desi nated respectively by letters and Q, the former having a central openin R formed therein with an n turned edge while the outer portion 0 the cap portion 0 is concaved and is adapted to fit over the top of the bottle in the same manper as shown in the other figures of the drawings. Said piece Q which is of inverted cup shape has a circumferential inclined wall and is adapted to enga e underneath the u turned part R when t e parts are presse together, thus making a tight joint, and the space intermediate the parts 0 and Q above their interlocked ends may becoated with lparafiin, or any other suitable material for ermetically sealing the cap.

By the provision of a closure for milk bottles embodying the features of my invention, it will be noted that the outer marginal edge of the cap is of smaller diameter than the diameter of the neck of the bottle opposite the usual seat for the cap and thereby eliminates all accidental displacement of 1o concaved part for engagement wit comprising a portion with a central annular openin with an u turned edge, which rests upon t 1e seat wit in the neck of a bottle, an inverted cup section, the marginal edge of which interlocks with said upturned edge and holds the closure to its seat.

2. A closure for milk bottles, comprising a section with a central opening having an upturned edge, and an outwardlfi flaring the top of the neck of the bottle, an inverted cup with a circumferential inclined walldesigned to interlock with said upturned edge and tending to hold by its natural elasticity the closure upon the seat in the neck of a bottle. 15 In testimony whereof I hereunto afiix my signature in presence of two witnesses.

CONRAD WALTER BORGNER.

lVitnesses:

GEORGE SHERWOOD, W'ILLIAM H. KING. 

